output_i = a_i_0 a_i_1
x
a_i_2
y
a_i_3
x
y
a_i_4
x
x
a_i_5
y
y
The FIT array is returned holding the values of the co-efficients a_0_0, a_0_1, etc.
X_out = fit(1) fit(2)
X_in
fit(3)
Y_in
fit(4)
X_in
Y_in
fit(5)
X_in
X_in
fit(6)
Y_in
Y_in
Y_out = fit(7)
fit(8)
X_in
fit(9)
Y_in
fit(10)
X_in
Y_in
fit(11)
X_in
X_in
fit(12)
Y_in
Y_in
AST A Library for Handling World Coordinate Systems in Astronomy